A test device for noninvasive testing of fish habitat selection and application thereof is described herein. The device includes a camera device, a water circulating system, a fish transporting barrel, and a test water tank. The fish transporting barrel is a water barrel with an openable bottom. The central area of the test water tank is arranged as a closed adaptation area, a water outlet is formed in the bottom of the adaptation area. Fish passages are formed in the adaptation area. Test areas with equal sizes are formed around the adaptation area through partition plates. A water inlet is formed in each test area. Water flow buffering plates are arranged corresponding to the water inlets. Fish passages are formed in the bottoms of the partition plates of the test areas. The water inlets of the test areas are connected to the water circulating system.

A device for high density culture of fish larvae includes: a nursery tank, a first aerotube, a standing mesh drain pipe, and a dual-drain recirculating water treatment system. The nursery tank is a rounded corner tank or a polygonal tank without dead corners. The first aerotube is disposed around the bottom of the inner wall of the nursery tank. The standing mesh drain pipe is disposed in the center of the bottom of the nursery tank. The dual-drain recirculating water treatment system includes a first water treatment system and a second water treatment system. The first water treatment system and the second water treatment system are symmetrically disposed on both sides of the nursery tank, respectively. The first water treatment system is configured to purify upper layer water of the nursery tank, and the second water treatment system is configured to purify lower layer water of the nursery tank.

An impeller for use in an aquarium filter pump includes a shaft and a plurality of impeller blades radially extending from the shaft. Each of the impeller blades includes opposite blade faces. A depression is in each of the blade faces and aids in pushing the water. The depression can be a variety of shapes and can have its deepest portion along one of the edges of the blade.

An impeller for use in an aquarium filter pump includes a shaft and a plurality of impeller blades radially extending from the shaft. Each of the impeller blades includes opposite blade faces. A depression is in each of the blade faces and aids in pushing the water. The depression can be a variety of shapes and can have its deepest portion along one of the edges of the blade.

Apparatus and associated methods relate to an environmental control system including a fluid driver configured to releasably couple to a buoyant module. In an illustrative example, in a deployment mode, the fluid driver may be brought into register with and releasably coupled to the buoyant module. The fluid driver, for example, be supported by the buoyant module in a body of water. A control unit may, for example, selectively provide energy to the fluid driver such that the fluid driver induces fluid to flow from the body of fluid to a reservoir by a conduit. The control unit may be configured to mechanically support the fluid driver in a stowage mode. Various embodiments may advantageously allow a user to selectively deploy a livewell environment control from a stowed mode into a deployed mode.

The present invention relates to an indoor aquaponics assembly which includes a base, an aquarium positioned above and supported by the base, a planter positioned above the aquarium, an aquarium conduit and a planter conduit. The planter is provided with at least two through holes facing towards the aquarium, one being adapted for a water drainage tube to pass through for draining water from the planter to the aquarium, and one being adapted for a tube of a pump to pass through for pumping water from the aquarium to the planter. The present invention aims at reducing the time and efforts required for caring and maintaining the aquarium and the plants.

Modular habitat structure (MHS) which accommodates one or more live inhabitants is comprised of a rigid pillar which extends linearly away from a base end toward an upper end. A plurality of major system components disposed at different locations along a length of the rigid pillar are each comprised of modular segments. A control unit controls a plurality of electronic devices integrated in the MHS, including one or more video cameras which generate live video streams of a wildlife habitat within the MHS, and communicates the video streams from the MHS to a remote computing device.

The present disclosure relates to emersed shellfish storage. A container support has a surface to support containers. Each container has respective cells to accommodate live shellfish, such as lobster, in a vertical orientation substantially perpendicular to the surface. Water from a reservoir is pumped, intermittently in some embodiments, to one or more of the containers above the shellfish, and a collector collects and provides to the reservoir the water that is pumped by the pump system and flows over the shellfish. In an embodiment, the cells are provided by a divider that divides an interior space of each container, and the divider carries a perforated top insert at or below a top edge of each container, to distribute fluids to the cells.

A system for transferring marine life within an aquaculture facility including a plurality of segregated storage facilities each containing water for marine life, maintained within a predetermined temperature range and supported at independent ground levels. The storage facilities are successively disposed and structured to contain marine life at different stages of growth. A transfer assembly includes a path of fluid flow interconnecting successive ones of said plurality of storage facilities in fluid communication with one another, wherein at least a majority of a length of said path of fluid flow is disposed beneath the independent ground levels at a predetermined depth, which is sufficient to facilitate maintenance of the path of fluid flow within the predetermined temperature range, via geothermal cooling. The transfer assembly may also connect a holding facility, which may be dimensioned and structured to transfer mature marine life, possibly on an on-demand basis, to the harvesting facility.

There is provided a liquid measurement and control apparatus (101) for measuring and controlling a level of liquid in an environment including plants or animals, the apparatus including: a first chamber (103) including a first liquid port (105) for liquid connection to the environment; a second chamber (107) integrally formed with the first chamber and including a second liquid port (109) for liquid connection to the environment; a level sensor (111) for measuring a first level of liquid in the first chamber; and an adjuster (113, 115, 117, 119, 121) for adjusting a second level of liquid in the second chamber, wherein, in use, flow of liquid between the first and second chambers within the apparatus is prevented such that the first level of liquid is representative of the level of liquid in the environment and the second level of liquid is adjustable to control the level of liquid in the environment.